Research Facility / Accelerator

Taiwan Light Source

The accelerator systems of Taiwan Light Source at NSRRC comprise a 1.5-GeV injector and a 1.5-GeV storage ring. The injector consists of a 50-MeV LINAC and a 1.5-GeV booster synchrotron.



Accelerator Facility Report



List of Parameters

Storage Ring
Maximum energy 1.5 GeV
Maximum beam current, multibunch 360 mA
Maximum beam current, single bunch 25 mA
Beam lifetime ( 1.5 GeV, 360 mA )   > 5 h
Circumference 120 m
Orbital period 400 ns
Number of superperiods 6
Lattice type TBA (Triple Bend Achromat)
Natural horizontal beam emittance 22 nm-rad
RF frequency 499.654 MHz
Harmonic number 200
Bending radius 3.495 m
Critical photon energy 2.14 keV
Bunch length ( 1σ ) 31 ps
Maximum length of insertion devices 4.5 m
Operation mode Top-up mode

Injector
Injection energy 1.5 GeV
Booster circumference 72 m
Injection cycle rate 10 Hz
Booster RF frequency 499.654 MHz
LINAC energy 50 MeV


Insertion Devices Main Parameters

Name W200 U50 U90 EPU56
Type hybrid hybrid hybrid pure
Length of magnetic period (mm) 200 50 90 56
Number of periods 13 76 48 66
minimum magnet gap (mm) 22.5 18 18 18
Vertical (horizontal) magnetic field (Tesla) 1.8 0.64 1.245 0.672
(0.453)
Horizontal (Vertical) defection parameter Ky (Kx) 33 2.99 10.46 3.52 (2.37)
Maximum magnetic force (ton) 20 3 17 3.5
Photon energy range to be used (eV) 800-15000 60-1500 5-100 80-1400
Total length (m) 3.0 3.9 4.5 3.9
Installation Dec. 1994 Mar. 1997 Apr. 1999 Aug. 1999


Superconducting Insertion Devices Main Parameters

Name SWLS SW60 IA SW-R6 IA SW-R2 IA SW-R4
Type SC SC SC SC SC
Length of magnetic period (mm) 325.6 60 60 60 60
Number of periods 1.5 32 7.5 7.5 7.5
minimum magnet gap (mm) 56 18 18.5 18.5 18.5
Vertical (horizontal) magnetic field (Tesla) 5 3.2 3.5 3.5 3.5
Horizontal (Vertical) defection parameter Ky (Kx) N/A 17.9 19.6 19.6 19.6
Photon energy range to be used (eV) 4000-33000 6500-19000 5000-14000 5000-14000 5000-14000
Magnet length (m) 0.835 1.404 0.85 0.85 0.85
Installation Apr. 2002 Jan. 2004 Apr. 2007 June. 2009 March. 2010